<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title> 

</head>
<body>
    {{ message }}
    <div id="app" class="app">
        {{ message }}
        <span> {{message}} </span>
    </div>
    






    <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
    <script>
        var app = new Vue({
            el: '#app',
            data: {
                message: 'Hello Vue!'
        }
    })
    </script>
    
</body>
</html>